Comparison

ムーンフラグ vs Simple Headache Log

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ムーンフラグ

Features
Read full description

-こんな人におすすめ- 記録をひと目でみたい コラムや情報は必要ない 自分だけの表現で記録したい アプリのデザインを自分で変更したい 毎日起動するのは面倒、まとめて記入したい 人前で使ってもバレない -機能- 生理を記録できます。 他、自分に合わせたカテゴリを自由に作成・編集できます。 (カテゴリはいくつでも作成できますが、 一覧に表示できるのは生理含めて4つまでです) 点と線(フラグ)で一覧表示できます。 その他のカテゴリはアイコンで表示されます。 カレンダーで確認することができます。 その際、メモも表示することができます。 カレンダーは5枚同時に表示でき、並べて比較することができます。 無料アプリです。下部にバナー広告が表示されます。 通知・シェア(通信)機能はありません。 当アプリは個人の健康状態の記録用アプリです。 健康を増進したり、治療計画を立てるものではありません。 またデータは端末(アプリがインストールされているiPhone,iPad) にのみ、保存されます。アプリを削除するとデータも消えますのでご注意ください。

About

Simple Headache Log

Easily log daily headaches by selecting pain level, weather, and potential causes. Analyze trends and identify triggers through simple charts and rankings. Record past data and manage custom pain factors.

Highlights
  • Easy pain logging with options
  • Analyze pain trends by weather and cause
  • Calendar view of daily pain levels
  • Add past headache data
  • Customizable pain causes and medicines
  • No login required
Features
Read full description

An app that allows you to record your daily headaches. Recommended for migraine sufferers and those who want to record their daily headaches and analyze the causes. Registration is very easy! Just select the pain level, weather, cause of pain, medicines you have taken from the options and press the save button. The simple operation allows for stress-free use. In case you forget to record the data, you can add past data from the "History" screen. In the "Analysis" screen, you can check the trend of pain by weather and the causes of pain in a ranking format, which is useful for analyzing the causes of headaches. ● Features ・Easy to use, just select from the options and register ("Cause of pain” and “Medicine” need to be added or deleted as needed). ・No need to log in. ・The calendar allows you to check the your daily pain level at a glance. ●Disclaimer This App is not medical or treatment advice. It is neither professional diagnosis, opinion or service – and may not be treated as such by the user. We strongly recommend that you consult your own physician or another available health professional regarding any diagnosis, findings or interpretation. ● Privacy Policy https://apps.seeds-digital.com/privacy-policy/ ● Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ムーンフラグ4 screens
Simple Headache Log4 screens

Verdict

The call

The clearest difference is in-app purchases: ムーンフラグ at none against Simple Headache Log's 2. ムーンフラグ also leads on iOS requirement (12.0 vs 15.6). Simple Headache Log's advantage is update cadence (every 3 days vs every 8 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simple Headache Log sells 2 in-app purchases, starting at $1.49 per month. ムーンフラグ asks for nothing beyond the download.

UpkeepUpdate frequency

ムーンフラグ ships an update every 8 months, Simple Headache Log every 3 days. The most recent releases landed on May 15, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
ムーンフラグ versus Simple Headache Log: the parameters behind the verdict, then further details
ParameterムーンフラグSimple Headache Log
PriceFreeFree
Rating—1.5 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 8 monthsEvery 3 days — better
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size114 MB56 MB
Age rating4+12+
DeveloperSumie WatanabeNAOYA ONO

In-app purchases

None

ムーンフラグ

No in-app purchases

2 purchases

Simple Headache Log

Subscriptions1
  • Premium Plan$1.491 Month
One-time1
  • Support Developer$0.99

Questions

Is ムーンフラグ free?
ムーンフラグ is free to download, with no in-app purchases.
Is Simple Headache Log free?
Simple Headache Log is free to download, with in-app purchases available.
Do ムーンフラグ or Simple Headache Log have ads?
Both ムーンフラグ and Simple Headache Log show ads.
Which is updated more often, ムーンフラグ or Simple Headache Log?
ムーンフラグ ships an update every 8 months, and Simple Headache Log every 3 days. Most recently, ムーンフラグ was updated on May 15, 2026 and Simple Headache Log on September 9, 2026.

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